WAEC Physics 2013 Theory — Question 10
Question 10 of 15 from the West African Examinations Council (WAEC) Physics 2013 Theory paper, with the correct answer and a full explanation.
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10. Write down the name of: (a) two particles used in explaining the wave nature of matter; (b) one device whose invention is based on the wave nature of matter.
Model answer
(a) Particles used in explaining the wave nature of matter include: (i) hydrogen atom or proton, (ii) helium nuclei (alpha particle), (iii) helium atom, (iv) electrons, (v) neutrons. (b) Devices whose invention is based on the wave nature of matter include: (i) electron microscope, (ii) scanning tunneling microscope (STM).
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